Transformation grid metadata record =================================== Source realization: SIRGAS2000 at epoch 2000.40 Target realization: SIRGAS-CON SIR17P01 at epoch 2015.00 Purpose: Static two-dimensional transformation surface representing combined realization and epoch differences for the realization pair stated above. Coordinate-shift components: latitude and longitude shifts. Direction: source realization to target realization. Interpolation used to generate the research surface: Natural Neighbor, according to the manuscript. Grid-generation software version: Ntv2Creator. Public archival identifier: SIR00-SIR17.gsb Relation to EPSG: Related operational transformation: EPSG 9980. The operational EPSG-related grid is not assumed to be binary-identical to the precursor research grid evaluated in the manuscript.